| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.60 | 6.22 | 0.38 |
| Feb | 6.38 | 6.59 | -0.21 |
| Mar | 5.86 | 5.88 | -0.02 |
| Apr | 3.13 | 3.10 | 0.03 |
| May | 1.90 | 1.80 | 0.10 |
| Jun | 0.47 | 0.52 | -0.05 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.05 | 0.06 | -0.01 |
| Sep | 0.33 | 0.30 | 0.03 |
| Oct | 1.83 | 1.80 | 0.03 |
| Nov | 3.82 | 3.75 | 0.07 |
| Dec | 6.66 | 6.55 | 0.11 |
37.04 | 36.57 | 0.47 |